In my signature I have a quote from Sutta-piṭaka which means: "Dhammas are rooted in the Blessed One...". This words appear frequently in the discourses, when monks questioned by the Buddha are uncertain about some point in the teachings. But I wonder what the Commentary has to say about it. Could someone translate this piece of Commentary?

The Blessed One is the source of them, thus they are "sourced in the Blessed One" (or: "with the Blessed One as their source"). This is said: "Bhante, these dhammas of ours were made manifest in the past by Kassapa, the Perfectly Awakened One. When he attained final Nibbana, for one Buddha-interval there was no other ascetic or brahmin who was capable of making these dhammas manifest. But [now] these dhammas have been made manifest for us by the Blessed One. Having indeed relied upon the Blessed One, we directly understand and penetrate these dhammas, thus [we say] "For us, bhante, dhammas have their source in the Blessed One."